Supporting bar



April 29, 1930- K. H. wHiTNEY 1,756,716l

SUPPORTING BAR Filed March l, 1928 SETQQEL Patented Apri 29, 1930 y UNITED STATES are r Fica KARL H. WHITNEY, KIRKSVILLE, MISSOURI, ASSIGNOR T WHITMANIS MANU- FACTURING COMPANY, INC., OF ,KIRKSVILLEL MISSOURI, A CORPORATIGN OF MIS- SOURI SUPPORTING BAR Application filed.v March 1,

provide an improved supporting bar adapted to be constructed from sections of tubular stock. Another object is to be provide an iml proved bar more readily adapted to being used over a wide range of lengths with a minimum of variation. Another object is to provide an improved bar adapted to develop a .maximum of supporting strength forI a prescribed weight of material. Another object is to provide a simple reliable and readily constructed and operated supported bar. My invention also comprises certain details of form andarrangement and combination of components, all of which will be fully set vforth in the description of the accompanying drawings, in which: y

Fig, 1'is a side elevation of a supporting bar in position for use, and embodying my invention.

Fig. 2 is an enlarged sectional detaill takenV upon line 2-2 of Fig. 1.

Fig. 3 is an enlarged sectional detail taken on line 3-3of Fig. 2.

Fig. 4 is an enlarged sectional detail taken on line .4 4 of Fig. 1.

Fig. 5 is a. view similar to Fig. 4 illustrating amodiiication. j

l The accompanying drawings illustrate one embodiment of my invention, in which and 16 represent opposite supporting abutments such as the opposite walls of a room, closet or bath room, or the opposite sides of a window f 19 by means of a bolt or pivot pin 26. A*

block of soft rubber cork or similar resilient 1928. Serial No. 258,236.

material'31 is held in place between' the channelk arms of the member 23. The shoe 18 is' Iconstructed in the same manner as described for the shoe 17, and is pivotally attached to the bar section 20 by means of a bolt or pivot pin 27.

The barsection 19'moves telescopically into and out of the tubular bar section 22 and is designed to closely fit the bore of said section 22. A cam shaped locking member 28 is Y pivotally attached by a pivot pin 29 between two ears 30 projecting outwardly from the bar section 22. When in full line position shown in Fig. 3, the locking member 28 serves to lock the bar section 19`to the bar section 22, andto prevent relative telescopic movement of said bar sections. n /Vhen in its dottedlinc position Fig. 3, the locking member releases rthe bar member 19 from the bar section 22, and permits them to be adjusted to a new relative telescopic position. In Figs. 2 and 3tlie bar section is shown of solid material, but where light weight is desirable it may be constructed from tubular stock, as indicated in dotted line Figs. 2 and 3, and substantially as shown in' Fig. 4. Y n

. The opposite end of the bar section 22 is cut awayon one side leaving a projecting tongue 32 upon the opposite side. 1 The end of the bar section 2O is pivotallyattached to the end ofthe bar section '22 by means of a -bolt or p-ivot pin 34. The bar section 20 may be of solid materialgbut is preferably constructed from tubular stock as shown. y

In operation the locking member 28 is shifted to its dotted line position, and they bai" members and shoes adjusted to a united lengthslightly greater than the dista-nce between the supporting abutments 15 and 16, whereupon thelocking member28 is shifted toits full line position-Fig. 3. *The whole f supporting bar is then adjusted to substantially the dotted line position Fig. y1 between thewabutments 15 and 16 and at the desired height, and pressure appliedto force the bar sectionv22 from its dotted line to its full line position, which ,has'the eect of forcing or thrusting the resilientfshoe members-31 lirmly into-frictional engagement with the vabut- -ments 415' andy 16,"l while the'end` 32 of the'barsection Q2 bears upon the upper face ot the bar section 2O to limit'the pivotal movement Vupon the pin 34. The shoe members 31 are compressed suli'iciently to insure the supporting bar retaining its adjusted position i'ehabt for long periods oi' time and to support heavy weights such window draperies r clothing suspended thereon by Fig. t shows a bar constructed from cylindricaltubing while Fig. 5 shows a bar constructed from tubing of rectangular cross section, in which reference numerals 200, 220 and 34;()V correspond 3ft-of Fig. 4.

The apparatus herein shown and described is capable of considerable modification within the-scope of the claims without departing from the spirit of my invention. That I claim is: l l. A supportingbar comprising a iirstrbar section having an overhangingrlip at one,

end and a locking member at its opposite end,

a second bar section pivotally attached at one Y -end to an intermediate portion oit said iirst bar section, a shoe pivotally attached to the opposite endV ofv said second bai section, a

third. V.bar sectionv adjustable telescopicallyr intoand out of the end. oi said first bar section*V opposite to said overhanging lip and adapted to be'loclred to saidfirst bar section by said locking member, and a slice pivotally Y attached to the opposite end o said third bar j ment..

section, said bar sections and shoes being adjustable troman angular idle position into an operative position between two abutments in which they are all in substantialv align- 2. VA supporting bar comprising a iirst bar section having an overhanging lip at one end,

'zi-second bar section hinged to said first bar section substantially at the base of said lip, a third bar section movabletelescopically relative to one ot said first and second bar sections,nmeans to lock said third bar section to its adjusted position, andshoes at opposite I ends of said supporting bar adapted to env gage supporting abutinents, said bar sections and shoes being adjustable from an angular idle position into an operative position between two abutments in which position they are'v alliin substantial alignment,

3. 1A ,supporting Vbar comprising first Y tubular bar section having Van overhang-A tion hinged to said'tirst bar section substan-` Y Y tially at the base of said lip, a third bar secing lip at one end, a second .bari-section movable telescopically relative to said first bar section, means to lock said third bar section" tov its adjusted position relative.v to Y to the numerals Q0, 22 andV signature.

said first bar section, and shoe members at oppositeends of said supporting bar adapted to engage supporting abutments, said bai sections and shoes being adjustable from an angular idleposition into an operative position between two abutments in which position they are all in substantial alignment.

j 4l. A supporting bar comprising a iirst rubular' bar section having an overhanging' `lip at one end, a second tubulary 'bjar` section hinged to said first bar section substantially at the base of said lip, a third tubular bar section movable telescopically relative to said first bar section, means to lock said third bar section to its adjusted position relative to said first bar section and shoe members pivotally attached to the free ends. of said second vand third bar sections adapted to engage supporting abutments, said'bar sections and shoes being adjustable from an angular; idle position` into an operative position between two abutments in which positiontheyV are; allin substantial alignment.

5. In combination withfsupporting abut'- ments, a supporting bar comprising afirst bar section having an overhanging lip at one end and a locking member atits opposite end, a second bar section pivotalfl-y attached at one end thereof to said iirst bar section at the-.base Y of saidi lip, a shoe member having Aan abutment engaging face ot resilient material pivotallyattached 'to the opposite end of said second bar section, a third bar sectionv adjustlable telescopically into and out of the outer end ofsaid iirst bar section and adapted tobeV locked to said first 'bar section by saidlocking member, and a shoe member havingan yabutment engaging face of resilient Lmaterial ioo pivotally attached` to the outer en d of Vsaid third bar section, said Vbar sections and shoe members being adjustable from an angular idle position into an operative position-between said abutments in which they are all in substantial alignment. j.

In testimony whereof `I have ailiXed my i Ynaar WHITNEY. 

